# Organizing Patterns in Mathematics

By: Judy Zorfass, Tracy Gray, and PowerUp WHAT WORKS

## Introduction

Finding and understanding patterns is crucial to mathematical thinking and problem solving, and it is easier for students to understand patterns if they know how to organize their information.

Struggling students, including those with disabilities, can find it helpful to organize the information in a problem. This process requires them to think more deeply about each piece of information, and to think about how those pieces fit together.

Creating an organized list, table, chart, or other graphic organizer is an important problem-solving strategy (see UDL Checkpoint 6.3: Facilitate managing information and resources). Organizing information will help your students to see patterns and learn mathematical concepts more easily. It will also help them to think about what they do and do not know about a problem. The strategies below provide a strong starting point for differentiating instruction.

## Using Evidence-Based Practices

Teachers can help their students organize information to find and use patterns by using three categories of evidence-based practices: provide clear explanations, give students strategies and models, and provide ongoing formative assessment. The chart below provides a concrete teaching strategy for each category.

Evidence-Based Practice

Strategy

Introduce this strategy by presenting a list, table, chart, or other graphic organizer (using a spreadsheet or concept mapping tool) and point out why each kind of organizer is helpful. For example, it might help you see patterns, quickly find a particular example or piece of information, and/or make sure you are not missing any examples.

Explain to your students that organized lists are fairly easy to create as long as there are not a lot of items. Show them an example of the kind of list that can be created from a problem, and explain how the list can be used to organize the information in the problem.

Draw on a two-part strategy to support students who are not being systematic in how they organize information. First, explore whether the organizer they are using is appropriate. Next, ask them questions that will help them find a more systematic way of organizing information. For example, you could ask them the following questions: What are you trying to find out? How will this organizer help you? What might be a problem? Explain to me the system you're using to make your list, chart, map, and so on. How do you know what to do next?

## Technology Resources

You and your students can take advantage of both online and offline tools to create, analyze, and understand patterns, as this chart shows.

A range of technology tools can greatly increase the organizing options available to students. Computer-based tools—such as spreadsheets and concept mapping tools (e.g., Bubbl.us)—can check that data is organized correctly, make information easier to sort, and save time, especially when creating charts.

One effective approach for helping students organize information is to use concrete materials, often referred to as manipulatives. These tools help students and teachers represent abstract mathematical concepts. They also help students to link these concepts to prior knowledge.

Teachers can also move beyond physical manipulatives and provide students with technology tools. Virtual manipulatives are digital “objects” that resemble physical objects. Examples of virtual manipulatives include Base-10 Blocks, Cuisenaire Rods, and tangrams. Most virtual manipulatives come with structured activities or suggestions to help teachers use them in the classroom.

## In the Classroom

Mr. Rutter's Grade 6 class is working on a multiplication unit that focuses on multiples and factors. He is planning an upcoming lesson that will focus on finding greatest common factors. Understanding these concepts is important for understanding fractions, which is their next mathematics unit.

To ensure his students are college and career ready, Mr. Rutter's teaching is guided by the Common Core State Standards Mathematics Practice Standard 7: Look for and make use of structure. Within this wider context, his more specific lesson objective is to have students learn organizing tools for working with factors and multiples.

Mr. Rutter plans to use a variety of technology tools in this lesson:

• An interactive whiteboard to communicate visually with the class
• A calculator
• The Factorize applet to use as a computer-based alternative for organizing factors
• The Factor Tree virtual manipulative to use as an extension activity and reinforce knowledge of factors

In order to assess his students, Mr. Rutter will question them about the completeness of the list of factors, observe the answers displayed on individual whiteboards, and guide student summaries about organizing and finding common factors.

His lesson plan is divided into three sections—launch, learning task, and closure—and is outlined below.